43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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import BigNumber from 'bignumber.js';
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import { isInstanceOf } from '../src/api/util/types';
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export { isFunction, isInstanceOf } from '../src/api/util/types';
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export { isAddress } from '../src/abi/util/address';
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const ZEROS = '000000000000000000000000000000000000000000000000000000000000';
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export function isBigNumber (test) {
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return isInstanceOf(test, BigNumber);
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}
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export function isBoolean (test) {
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return Object.prototype.toString.call(test) === '[object Boolean]';
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}
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export function isHexNumber (_test) {
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if (_test.substr(0, 2) !== '0x') {
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return false;
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}
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const test = _test.substr(2);
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const hex = `${ZEROS}${(new BigNumber(_test, 16)).toString(16)}`.slice(-1 * test.length);
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return hex === test;
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}
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